The Seiko Astron GPS Solar is the world's first truly global watch, using Seiko's own in-house manufactured technology to connect the timepiece to multiple GPS satellites, find and determine your location, and then set the hands to that timezone, all at the push of a button. The in-house development of a low power consuming GPS receiver as well as a ring shaped antenna allows the Seiko Astron GPS to connect effortlessly through a ceramic bezel, without draining the power all in one shot. The watches power comes from light, adoring that batteries will not need to be replaced and making for a cleaner environment. The SAST025 is stainless steel with a black hard coated case. The city codes are found engraved on the black ceramic bezel of the SAST025. Impressive orange luminescent indexes give the SAST025 tremendous character and with a proprietary extra-strength silicone strap, a sporty look with unbelievable technology inside.

Caliber: 7X52

Radio: GPS controlled time and time zone adjustment

Date calendar: Perpetual calendar correct to February 2100, Signal reception result indication

World Time Function: (39 Time Zones),Daylight Saving Time function, Power saving function

Accuracy: +/-15 seconds per month, (without receiving a time signal and in temperatures between 5䋀 and 35䋀)

Case Material: Stainless Steel with black hard coating and engraved ceramic bezel

Case Diameter: 47.0 mm, thickness: 16.5 mm

Band: Extra-strength silicon with three-fold clasp with push button release

Glass: Sapphire crystal with Super-Clear Coating

Water Resistance: 10 bar

Magnetic Resistance: 4,800 A/m

Functions: Hour, minute and second hands